buys the gun will also get an extra clip for bullets and a letter from the son of one of the texas rangers who killed the couple. >>> when most of us travel, we take a train, plane or automobile. why don't we try hopping on a horse to get around? we get on the saddle in london's hyde park. >> reporter: i'm going to take you to one of london's biggest tourist spots, but i'm not going to take you there by boat or by buggy or by bus or by bike, i'm going to take you by ben. now, this is not big ben, just ben, and ben is going to take us for a little stroll around town. come on. >> i love this because this doesn't feel like work at all. >> reporter: this is the beautiful serpentine in hyde park. it was created 300-some years ago. it's actually fake, so ben and this horse won't want to actually drink from this water, but the tourists are having a good time. hyde park is 350 acres. we're actually on a bit called rotten road. now, this used to be a very fashionable place where society would come to see and be seen. no, it's not time to eat! if ever you're in london, come check it out. come for a